Abstract: The present invention provides a liquid handling system comprising a reactor, wherein the reactor is structured such that it contains a gaseous phase and an aqueous phase, both phases being in contact with a heterogeneous hydrogenation catalyst immobilised or suspended within the aqueous phase, wherein the gaseous phase comprises hydrogen and wherein the aqueous phase comprises (i) a solution of amines; and (ii) nitrosamine and/or nitramine compounds resulting from amine-based gas sweetening processes. The invention further relates to a process for in-situ destruction of compounds in the aqueous phase from a scrubber system, wherein the process comprises contacting the aqueous phase with a gas phase comprising hydrogen and a heterogeneous catalyst, wherein the aqueous phase comprises (i) a solution of amines; and (ii) nitrosamine and/or nitramine compounds resulting from amine-based gas sweetening.

Abstract: A tracer system comprising a tracer compound for a fluid system, the tracer compound comprising one or more polyether alcohol compounds. The one or more polyether alcohol compounds is arranged for being placed in contact with a first part of said fluid system. The one or more polyether alcohol compounds is truly monodisperse. The polyether alcohol compounds comprises one or more functional groups. The one or more truly monodisperse polyether alcohol compounds is arranged for being detected in a second part of the fluid system in fluid communication with said first part of said fluid system. The tracer compound is detectable in very low concentrations.